REVIEW ON THE AQUATIC WEEDS, AND THEIR IMPACTS ON ECOSYSTEM AND AQUACULTURE

ABSTRACT The present research paper is discussion on the aquatic weeds and impact on their surroundings aquatic fauna and Ecosystem. . For the study of aquatic weed the author has been selected some sites of Waghadi river. Waghadi River is one of the most important tributaries of river Painganga and flows through the cities of Ghatanji, Kelapur, and Yavatmal. The river thereafter merge into the river of Godavari and floes downstream. The weeds are plants which grows out of their place, interfere with the utilization of natural resources, prolific, persistent, resistant, competitive, harmful and even poisonous in nature and can grow under adverse climatic conditions. Sometimes economical plants may also grow out their proper places which are termed as rouge and not weeds. Aquatic plants are essential parts of natural aquatic systems and form the basis of a water body’s health and productivity. On the other side, when aquatic plants become over abundant it requires control. The presence of excessive aquatic vegetation influences on aquatic animals and results are to reduce in numbers. During the study in the session 2021-22 at some places of Waghadi River Dam outlet of Yerabara region of Ghatanji taluka, District Yavatmal. It was found that the Algae and Aquatic flowering weeds was covered the maximum part of the water it includes the A]. Emergent weeds – shore & marginal like Typha latifolia B]. Floating weeds – Free floating, rooted floating like Eichhornia crassipes, Salvinia auriculata C] Rooted and non-rooted submerged weeds: Submerged weeds which are completely submerged within water and rooted in the bottom soil e.g. Hydrilla, Najas etc. Non-rooted free floating submerged weeds e.g. Ceratophyllum. According to discussion and observation of research work, it was conclude that these aquatic weed are harmful as well as useful impact on their surrounding fauna and on the ecosystem. Keywords: – Yerabara dam, Aquatic systems, Aquatic weeds, aquatic fauna, Ecosystem.